Key for attachment to a ring



FIG. 1 is a front perspective view of a key for attachment to a ringshowing my new design, the broken-line showing of a ring is forillustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front elevational view of the key.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational thereof.

I claim the ornamental design for a key for attachment to a ring, as shown and described. 